This invention relates to electrophoretic fluids comprising at least two immiscible liquids and black, white and/or coloured particles and/or dyes, and electrophoretic display devices comprising such fluids.

This invention relates to electrophoretic fluids comprising at least two immiscible liquids and black, white and/or coloured particles and/or dyes, and electrophoretic display devices comprising such fluids.

A polymeric film includes a plurality of tapered microcells containing a dispersion of a first group and a second group of charged particles. The first group and second group of charged particles having opposite charge polarities. The tapered microcells include a wall and at least a portion of the wall is configured to repel the first group of charged particles. Also provided is a method of making a laminate for an electrophoretic display comprising embossing a plurality of tapered microcells through a layer of polymeric film and into a release sheet to form an embossed film; laminating the embossed film to a layer of conductive material on a protective sheet to form a laminated film; removing the release sheet from the polymeric film to form an opening to an interior of each microcell of the laminated film; filling the microcells with a dispersion fluid; and sealing the microcells.

A light route control member according to an embodiment comprises: a first substrate into which light is incident from an external area; a first electrode disposed on the top surface of the first substrate; a second substrate disposed above the first substrate; a second electrode disposed on the bottom surface of the second substrate; and a light conversion unit disposed between the second electrode and the second electrode, wherein the light conversion unit comprises partition wall units and receiving units which are alternately arranged, each of the receiving units has a light transmittance that changes according to the application of voltage, the refractive index of the partition wall units is larger than the refractive index of the external areas, and the difference between the refractive index of the partition wall units and the refractive index of the external areas is 0.3 or higher.

An optical path control member according to one embodiment comprises: a first substrate; a first electrode arranged on the first substrate; a second substrate arranged on the first substrate; a second electrode arranged below the second substrate; and a light conversion unit arranged between the first electrode and the second electrode, wherein the light conversion unit includes a barrier part and an accommodation part, which are alternately arranged, the accommodation part has a light transmittance that changes according to applied voltage, the first electrode extends in a first direction and includes a plurality of pattern electrodes spaced from each other, and the barrier part and the accommodation part extend in a second direction that differs from the first direction.

A display unit includes a first chamber, a second chamber, and a working fluid. The second chamber is spatially connected to the first chamber to form a continuous internal space with the first chamber, and the working fluid is disposed in the continuous internal space. The first chamber includes a transparent substrate and an opposing substrate having an opposing surface oppositely aligned with the transparent substrate. The working fluid can adjustably flow into the first chamber and cover the opposing surface, or to flow out of the first chamber and expose the opposing surface, to allow the display unit to realize a bright-state display or a dark-state display.

An e-paper assembly includes a charge-responsive, re-writable media layer and an airborne-charge receiving layer disposed on the first side of the media layer. A moisture vapor barrier is interposed between the airborne-charge receiving layer and a first side of the charge-responsive media layer, with the moisture vapor barrier including an inorganic material.

An e-paper assembly includes a charge-responsive, re-writable media layer and an airborne-charge receiving layer disposed on the first side of the media layer. A moisture vapor barrier is interposed between the airborne-charge receiving layer and a first side of the charge-responsive media layer, with the moisture vapor barrier including an inorganic material.

The present invention is a window pane assembly system and method utilizing locking a locking system for easy insertion of a second window pane and an electro kinetic strip or film on these window panes. These electrokinetic strips and films have the capability to do many things on the window panes like changing the opacity of the windows and allowing certain levels of light through the window. The use of this technology can create more opportunities for creating advertisements on window surfaces, storing energy or repelling solar energy for building temperature management and energy savings. The electrokinetic film can be used with a remodel of window panes or the electrokinetic strips and films can be built into new window panes. With the ability of the electrokinetic devices to allow certain levels of light in, there is the opportunity for many more technological advancements on the window panes. The electrokinetic film may incorporate a matrix of densely packed apertures with scalable shutters, to attenuate light transmission through the window pane assembly.

A front plane laminate useful in the manufacture of electro-optic displays comprises, in order, a light-transmissive electrically-conductive layer, a layer of an electro-optic medium in electrical contact with the electrically-conductive layer, an adhesive layer and a release sheet. This front plane laminate can be prepared as a continuous web, cut to size, the release sheet removed and the laminate laminated to a backplane to form a display. Methods for providing conductive vias through the electro-optic medium and for testing the front plane laminate are also described.